1 /* $OpenBSD: scp.c,v 1.160 2007/08/06 19:16:06 sobrado Exp $ */
3 * scp - secure remote copy. This is basically patched BSD rcp which
4 * uses ssh to do the data transfer (instead of using rcmd).
6 * NOTE: This version should NOT be suid root. (This uses ssh to
7 * do the transfer and ssh has the necessary privileges.)
9 * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi>
11 * As far as I am concerned, the code I have written for this software
12 * can be used freely for any purpose. Any derived versions of this
13 * software must be clearly marked as such, and if the derived work is
14 * incompatible with the protocol description in the RFC file, it must be
15 * called by a name other than "ssh" or "Secure Shell".
18 * Copyright (c) 1999 Theo de Raadt. All rights reserved.
19 * Copyright (c) 1999 Aaron Campbell. All rights reserved.
21 * Redistribution and use in source and binary forms, with or without
22 * modification, are permitted provided that the following conditions
24 * 1. Redistributions of source code must retain the above copyright
25 * notice, this list of conditions and the following disclaimer.
26 * 2. Redistributions in binary form must reproduce the above copyright
27 * notice, this list of conditions and the following disclaimer in the
28 * documentation and/or other materials provided with the distribution.
30 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
31 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
33 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
34 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
35 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
39 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
45 * Copyright (c) 1983, 1990, 1992, 1993, 1995
46 * The Regents of the University of California. All rights reserved.
48 * Redistribution and use in source and binary forms, with or without
49 * modification, are permitted provided that the following conditions
51 * 1. Redistributions of source code must retain the above copyright
52 * notice, this list of conditions and the following disclaimer.
53 * 2. Redistributions in binary form must reproduce the above copyright
54 * notice, this list of conditions and the following disclaimer in the
55 * documentation and/or other materials provided with the distribution.
56 * 3. Neither the name of the University nor the names of its contributors
57 * may be used to endorse or promote products derived from this software
58 * without specific prior written permission.
60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
63 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
76 #include <sys/types.h>
77 #include <sys/param.h>
78 #ifdef HAVE_SYS_STAT_H
79 # include <sys/stat.h>
81 #ifdef HAVE_SYS_TIME_H
82 # include <sys/time.h>
99 #if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H)
104 #include "atomicio.h"
105 #include "pathnames.h"
108 #include "progressmeter.h"
110 extern char *__progname;
112 int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout);
116 /* Struct for addargs */
119 /* Bandwidth limit */
120 off_t limit_rate = 0;
122 /* Name of current file being transferred. */
125 /* This is set to non-zero to enable verbose mode. */
126 int verbose_mode = 0;
128 /* This is set to zero if the progressmeter is not desired. */
129 int showprogress = 1;
131 /* This is the program to execute for the secured connection. ("ssh" or -S) */
132 char *ssh_program = _PATH_SSH_PROGRAM;
134 /* This is used to store the pid of ssh_program */
135 pid_t do_cmd_pid = -1;
140 if (do_cmd_pid > 1) {
141 kill(do_cmd_pid, signo ? signo : SIGTERM);
142 waitpid(do_cmd_pid, NULL, 0);
151 do_local_cmd(arglist *a)
158 fatal("do_local_cmd: no arguments");
161 fprintf(stderr, "Executing:");
162 for (i = 0; i < a->num; i++)
163 fprintf(stderr, " %s", a->list[i]);
164 fprintf(stderr, "\n");
166 if ((pid = fork()) == -1)
167 fatal("do_local_cmd: fork: %s", strerror(errno));
170 execvp(a->list[0], a->list);
176 signal(SIGTERM, killchild);
177 signal(SIGINT, killchild);
178 signal(SIGHUP, killchild);
180 while (waitpid(pid, &status, 0) == -1)
182 fatal("do_local_cmd: waitpid: %s", strerror(errno));
186 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
193 * This function executes the given command as the specified user on the
194 * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
195 * assigns the input and output file descriptors on success.
199 do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout)
201 int pin[2], pout[2], reserved[2];
205 "Executing: program %s host %s, user %s, command %s\n",
207 remuser ? remuser : "(unspecified)", cmd);
210 * Reserve two descriptors so that the real pipes won't get
211 * descriptors 0 and 1 because that will screw up dup2 below.
213 if (pipe(reserved) < 0)
214 fatal("pipe: %s", strerror(errno));
216 /* Create a socket pair for communicating with ssh. */
218 fatal("pipe: %s", strerror(errno));
220 fatal("pipe: %s", strerror(errno));
222 /* Free the reserved descriptors. */
226 /* Fork a child to execute the command on the remote host using ssh. */
228 if (do_cmd_pid == 0) {
237 replacearg(&args, 0, "%s", ssh_program);
239 addargs(&args, "-l%s", remuser);
240 addargs(&args, "%s", host);
241 addargs(&args, "%s", cmd);
243 execvp(ssh_program, args.list);
246 } else if (do_cmd_pid == -1) {
247 fatal("fork: %s", strerror(errno));
249 /* Parent. Close the other side, and return the local side. */
254 signal(SIGTERM, killchild);
255 signal(SIGINT, killchild);
256 signal(SIGHUP, killchild);
265 BUF *allocbuf(BUF *, int, int);
268 void run_err(const char *,...);
269 void verifydir(char *);
273 int errs, remin, remout;
274 int pflag, iamremote, iamrecursive, targetshouldbedirectory;
277 char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
280 void rsource(char *, struct stat *);
281 void sink(int, char *[]);
282 void source(int, char *[]);
283 void tolocal(int, char *[]);
284 void toremote(char *, int, char *[]);
288 main(int argc, char **argv)
290 int ch, fflag, tflag, status, n;
292 char *targ, *endp, **newargv;
296 /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
299 /* Copy argv, because we modify it */
300 newargv = xcalloc(MAX(argc + 1, 1), sizeof(*newargv));
301 for (n = 0; n < argc; n++)
302 newargv[n] = xstrdup(argv[n]);
305 __progname = ssh_get_progname(argv[0]);
307 memset(&args, '\0', sizeof(args));
309 addargs(&args, "%s", ssh_program);
310 addargs(&args, "-x");
311 addargs(&args, "-oForwardAgent no");
312 addargs(&args, "-oPermitLocalCommand no");
313 addargs(&args, "-oClearAllForwardings yes");
316 while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1)
318 /* User-visible flags. */
324 addargs(&args, "-%c", ch);
330 addargs(&args, "-%c%s", ch, optarg);
333 addargs(&args, "-p%s", optarg);
336 addargs(&args, "-oBatchmode yes");
339 speed = strtod(optarg, &endp);
340 if (speed <= 0 || *endp != '\0')
342 limit_rate = speed * 1024;
351 ssh_program = xstrdup(optarg);
354 addargs(&args, "-v");
358 addargs(&args, "-q");
362 /* Server options. */
364 targetshouldbedirectory = 1;
366 case 'f': /* "from" */
374 setmode(0, O_BINARY);
383 if ((pwd = getpwuid(userid = getuid())) == NULL)
384 fatal("unknown user %u", (u_int) userid);
386 if (!isatty(STDOUT_FILENO))
389 remin = STDIN_FILENO;
390 remout = STDOUT_FILENO;
393 /* Follow "protocol", send data. */
406 targetshouldbedirectory = 1;
410 /* Command to be executed on remote system using "ssh". */
411 (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
412 verbose_mode ? " -v" : "",
413 iamrecursive ? " -r" : "", pflag ? " -p" : "",
414 targetshouldbedirectory ? " -d" : "");
416 (void) signal(SIGPIPE, lostconn);
418 if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
419 toremote(targ, argc, argv);
421 if (targetshouldbedirectory)
422 verifydir(argv[argc - 1]);
423 tolocal(argc, argv); /* Dest is local host. */
426 * Finally check the exit status of the ssh process, if one was forked
427 * and no error has occured yet
429 if (do_cmd_pid != -1 && errs == 0) {
433 (void) close(remout);
434 if (waitpid(do_cmd_pid, &status, 0) == -1)
437 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
445 toremote(char *targ, int argc, char **argv)
447 char *bp, *host, *src, *suser, *thost, *tuser, *arg;
451 memset(&alist, '\0', sizeof(alist));
458 arg = xstrdup(argv[argc - 1]);
459 if ((thost = strrchr(arg, '@'))) {
470 if (tuser != NULL && !okname(tuser)) {
475 for (i = 0; i < argc - 1; i++) {
476 src = colon(argv[i]);
477 if (src) { /* remote to remote */
479 addargs(&alist, "%s", ssh_program);
481 addargs(&alist, "-v");
482 addargs(&alist, "-x");
483 addargs(&alist, "-oClearAllForwardings yes");
484 addargs(&alist, "-n");
489 host = strrchr(argv[i], '@');
493 host = cleanhostname(host);
496 suser = pwd->pw_name;
497 else if (!okname(suser))
499 addargs(&alist, "-l");
500 addargs(&alist, "%s", suser);
502 host = cleanhostname(argv[i]);
504 addargs(&alist, "%s", host);
505 addargs(&alist, "%s", cmd);
506 addargs(&alist, "%s", src);
507 addargs(&alist, "%s%s%s:%s",
508 tuser ? tuser : "", tuser ? "@" : "",
510 if (do_local_cmd(&alist) != 0)
512 } else { /* local to remote */
514 xasprintf(&bp, "%s -t %s", cmd, targ);
515 host = cleanhostname(thost);
516 if (do_cmd(host, tuser, bp, &remin,
530 tolocal(int argc, char **argv)
532 char *bp, *host, *src, *suser;
536 memset(&alist, '\0', sizeof(alist));
539 for (i = 0; i < argc - 1; i++) {
540 if (!(src = colon(argv[i]))) { /* Local to local. */
542 addargs(&alist, "%s", _PATH_CP);
544 addargs(&alist, "-r");
546 addargs(&alist, "-p");
547 addargs(&alist, "%s", argv[i]);
548 addargs(&alist, "%s", argv[argc-1]);
549 if (do_local_cmd(&alist))
556 if ((host = strrchr(argv[i], '@')) == NULL) {
563 suser = pwd->pw_name;
565 host = cleanhostname(host);
566 xasprintf(&bp, "%s -f %s", cmd, src);
567 if (do_cmd(host, suser, bp, &remin, &remout) < 0) {
573 sink(1, argv + argc - 1);
580 source(int argc, char **argv)
585 off_t i, amt, statbytes;
587 int fd = -1, haderr, indx;
588 char *last, *name, buf[2048], encname[MAXPATHLEN];
591 for (indx = 0; indx < argc; ++indx) {
595 while (len > 1 && name[len-1] == '/')
597 if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) < 0)
599 if (strchr(name, '\n') != NULL) {
600 strnvis(encname, name, sizeof(encname), VIS_NL);
603 if (fstat(fd, &stb) < 0) {
604 syserr: run_err("%s: %s", name, strerror(errno));
608 switch (stb.st_mode & S_IFMT) {
618 run_err("%s: not a regular file", name);
621 if ((last = strrchr(name, '/')) == NULL)
628 * Make it compatible with possible future
629 * versions expecting microseconds.
631 (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n",
632 (u_long) stb.st_mtime,
633 (u_long) stb.st_atime);
634 (void) atomicio(vwrite, remout, buf, strlen(buf));
638 #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
639 snprintf(buf, sizeof buf, "C%04o %lld %s\n",
640 (u_int) (stb.st_mode & FILEMODEMASK),
641 (long long)stb.st_size, last);
643 fprintf(stderr, "Sending file modes: %s", buf);
645 (void) atomicio(vwrite, remout, buf, strlen(buf));
648 if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) {
649 next: if (fd != -1) {
656 start_progress_meter(curfile, stb.st_size, &statbytes);
657 /* Keep writing after an error so that we stay sync'd up. */
658 for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
660 if (i + amt > stb.st_size)
661 amt = stb.st_size - i;
663 result = atomicio(read, fd, bp->buf, amt);
668 (void) atomicio(vwrite, remout, bp->buf, amt);
670 result = atomicio(vwrite, remout, bp->buf, amt);
679 stop_progress_meter();
682 if (close(fd) < 0 && !haderr)
687 (void) atomicio(vwrite, remout, "", 1);
689 run_err("%s: %s", name, strerror(haderr));
695 rsource(char *name, struct stat *statp)
699 char *last, *vect[1], path[1100];
701 if (!(dirp = opendir(name))) {
702 run_err("%s: %s", name, strerror(errno));
705 last = strrchr(name, '/');
711 (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n",
712 (u_long) statp->st_mtime,
713 (u_long) statp->st_atime);
714 (void) atomicio(vwrite, remout, path, strlen(path));
715 if (response() < 0) {
720 (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
721 (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
723 fprintf(stderr, "Entering directory: %s", path);
724 (void) atomicio(vwrite, remout, path, strlen(path));
725 if (response() < 0) {
729 while ((dp = readdir(dirp)) != NULL) {
732 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
734 if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
735 run_err("%s/%s: name too long", name, dp->d_name);
738 (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
742 (void) closedir(dirp);
743 (void) atomicio(vwrite, remout, "E\n", 2);
750 static struct timeval bwstart, bwend;
751 static int lamt, thresh = 16384;
753 struct timespec ts, rm;
755 if (!timerisset(&bwstart)) {
756 gettimeofday(&bwstart, NULL);
764 gettimeofday(&bwend, NULL);
765 timersub(&bwend, &bwstart, &bwend);
766 if (!timerisset(&bwend))
770 waitlen = (double)1000000L * lamt / limit_rate;
772 bwstart.tv_sec = waitlen / 1000000L;
773 bwstart.tv_usec = waitlen % 1000000L;
775 if (timercmp(&bwstart, &bwend, >)) {
776 timersub(&bwstart, &bwend, &bwend);
778 /* Adjust the wait time */
783 } else if (bwend.tv_usec < 100) {
789 TIMEVAL_TO_TIMESPEC(&bwend, &ts);
790 while (nanosleep(&ts, &rm) == -1) {
798 gettimeofday(&bwstart, NULL);
802 sink(int argc, char **argv)
812 int amt, exists, first, ofd;
813 mode_t mode, omode, mask;
814 off_t size, statbytes;
815 int setimes, targisdir, wrerrno = 0;
816 char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
817 struct timeval tv[2];
821 #define SCREWUP(str) { why = str; goto screwup; }
823 setimes = targisdir = 0;
828 run_err("ambiguous target");
832 if (targetshouldbedirectory)
835 (void) atomicio(vwrite, remout, "", 1);
836 if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
838 for (first = 1;; first = 0) {
840 if (atomicio(read, remin, cp, 1) != 1)
843 SCREWUP("unexpected <newline>");
845 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
846 SCREWUP("lost connection");
848 } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
851 fprintf(stderr, "Sink: %s", buf);
853 if (buf[0] == '\01' || buf[0] == '\02') {
855 (void) atomicio(vwrite, STDERR_FILENO,
856 buf + 1, strlen(buf + 1));
863 (void) atomicio(vwrite, remout, "", 1);
873 mtime.tv_sec = strtol(cp, &cp, 10);
874 if (!cp || *cp++ != ' ')
875 SCREWUP("mtime.sec not delimited");
876 mtime.tv_usec = strtol(cp, &cp, 10);
877 if (!cp || *cp++ != ' ')
878 SCREWUP("mtime.usec not delimited");
879 atime.tv_sec = strtol(cp, &cp, 10);
880 if (!cp || *cp++ != ' ')
881 SCREWUP("atime.sec not delimited");
882 atime.tv_usec = strtol(cp, &cp, 10);
883 if (!cp || *cp++ != '\0')
884 SCREWUP("atime.usec not delimited");
885 (void) atomicio(vwrite, remout, "", 1);
888 if (*cp != 'C' && *cp != 'D') {
890 * Check for the case "rcp remote:foo\* local:bar".
891 * In this case, the line "No match." can be returned
892 * by the shell before the rcp command on the remote is
893 * executed so the ^Aerror_message convention isn't
900 SCREWUP("expected control record");
903 for (++cp; cp < buf + 5; cp++) {
904 if (*cp < '0' || *cp > '7')
906 mode = (mode << 3) | (*cp - '0');
909 SCREWUP("mode not delimited");
911 for (size = 0; isdigit(*cp);)
912 size = size * 10 + (*cp++ - '0');
914 SCREWUP("size not delimited");
915 if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) {
916 run_err("error: unexpected filename: %s", cp);
920 static char *namebuf;
921 static size_t cursize;
924 need = strlen(targ) + strlen(cp) + 250;
925 if (need > cursize) {
928 namebuf = xmalloc(need);
931 (void) snprintf(namebuf, need, "%s%s%s", targ,
932 strcmp(targ, "/") ? "/" : "", cp);
937 exists = stat(np, &stb) == 0;
939 int mod_flag = pflag;
941 SCREWUP("received directory without -r");
943 if (!S_ISDIR(stb.st_mode)) {
948 (void) chmod(np, mode);
950 /* Handle copying from a read-only
953 if (mkdir(np, mode | S_IRWXU) < 0)
956 vect[0] = xstrdup(np);
960 if (utimes(vect[0], tv) < 0)
961 run_err("%s: set times: %s",
962 vect[0], strerror(errno));
965 (void) chmod(vect[0], mode);
972 if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) {
973 bad: run_err("%s: %s", np, strerror(errno));
976 (void) atomicio(vwrite, remout, "", 1);
977 if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) {
986 start_progress_meter(curfile, size, &statbytes);
987 for (count = i = 0; i < size; i += 4096) {
993 j = atomicio(read, remin, cp, amt);
995 run_err("%s", j ? strerror(errno) :
996 "dropped connection");
1007 if (count == bp->cnt) {
1008 /* Keep reading so we stay sync'd up. */
1010 if (atomicio(vwrite, ofd, bp->buf,
1021 stop_progress_meter();
1022 if (count != 0 && wrerr == NO &&
1023 atomicio(vwrite, ofd, bp->buf, count) != count) {
1027 if (wrerr == NO && (!exists || S_ISREG(stb.st_mode)) &&
1028 ftruncate(ofd, size) != 0) {
1029 run_err("%s: truncate: %s", np, strerror(errno));
1033 if (exists || omode != mode)
1035 if (fchmod(ofd, omode)) {
1036 #else /* HAVE_FCHMOD */
1037 if (chmod(np, omode)) {
1038 #endif /* HAVE_FCHMOD */
1039 run_err("%s: set mode: %s",
1040 np, strerror(errno));
1044 if (!exists && omode != mode)
1046 if (fchmod(ofd, omode & ~mask)) {
1047 #else /* HAVE_FCHMOD */
1048 if (chmod(np, omode & ~mask)) {
1049 #endif /* HAVE_FCHMOD */
1050 run_err("%s: set mode: %s",
1051 np, strerror(errno));
1055 if (close(ofd) == -1) {
1060 if (setimes && wrerr == NO) {
1062 if (utimes(np, tv) < 0) {
1063 run_err("%s: set times: %s",
1064 np, strerror(errno));
1070 run_err("%s: %s", np, strerror(wrerrno));
1073 (void) atomicio(vwrite, remout, "", 1);
1080 run_err("protocol error: %s", why);
1087 char ch, *cp, resp, rbuf[2048];
1089 if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
1099 case 1: /* error, followed by error msg */
1100 case 2: /* fatal error, "" */
1102 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1105 } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
1108 (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf);
1120 (void) fprintf(stderr,
1121 "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n"
1122 " [-l limit] [-o ssh_option] [-P port] [-S program]\n"
1123 " [[user@]host1:]file1 ... [[user@]host2:]file2\n");
1128 run_err(const char *fmt,...)
1134 if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
1135 (void) fprintf(fp, "%c", 0x01);
1136 (void) fprintf(fp, "scp: ");
1138 (void) vfprintf(fp, fmt, ap);
1140 (void) fprintf(fp, "\n");
1146 vfprintf(stderr, fmt, ap);
1148 fprintf(stderr, "\n");
1157 if (!stat(cp, &stb)) {
1158 if (S_ISDIR(stb.st_mode))
1162 run_err("%s: %s", cp, strerror(errno));
1177 if (!isalpha(c) && !isdigit(c)) {
1192 bad: fprintf(stderr, "%s: invalid user name\n", cp0);
1197 allocbuf(BUF *bp, int fd, int blksize)
1200 #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
1203 if (fstat(fd, &stb) < 0) {
1204 run_err("fstat: %s", strerror(errno));
1207 size = roundup(stb.st_blksize, blksize);
1210 #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */
1212 #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */
1213 if (bp->cnt >= size)
1215 if (bp->buf == NULL)
1216 bp->buf = xmalloc(size);
1218 bp->buf = xrealloc(bp->buf, 1, size);
1219 memset(bp->buf, 0, size);
1228 write(STDERR_FILENO, "lost connection\n", 16);